optional
OP-shuh-nuhl
Optional (adjective) means not required; available to choose but not compulsory. Example: “Wearing a tie to the party is optional, so come in whatever you like.”
adjective
1
Not required; available to choose but not compulsory.
"Wearing a tie to the party is optional, so come in whatever you like."
"Attendance at the workshop is optional."
"Leather seats are an optional upgrade on this model."
How to use optional
Learner’s notesIn plain EnglishSomething you can choose to do or have, but don't have to.
Easily confused with
Common pairings
optional extra
strictly optional
entirely optional
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Word forms
- Plural
- optionals
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Wearing a tie to the party is _____, so come in whatever you like.
Etymology
Formed from option plus the adjective ending -al.
Synonyms
View more →Antonyms
Related words
Rhymes for optional
coronal
rational
diagonal
personal
seasonal
national
regional
hormonal
hexagonal
fictional
emotional
irrational
See all rhymes for optional →
Frequently asked questions
What does “optional” mean?
The word “optional” means not required; available to choose but not compulsory. In plain terms, something you can choose to do or have, but don't have to.
How do you pronounce “optional”?
“Optional” is pronounced OP-shuh-nuhl (/ˈɑp.ʃə.nəl/ in IPA).
How do you use “optional” in a sentence?
Here is “optional” used in a sentence: “Attendance at the workshop is optional.”
What is the opposite of “optional”?
The opposite of “optional” — its antonyms — are non-optional, nonoptional, compulsory, mandatory and obligate.
What part of speech is “optional”?
“Optional” is an adjective.
Is “optional” a common word?
“Optional” is a fairly common word in modern English, usually learned at around the B2 level.
What is the difference between optional and mandatory?
"Optional" means you are free to choose whether to do or take something; it is not required. "Mandatory" means the opposite: it must be done and you have no choice. An optional field on a form can be left blank, while a mandatory one must be filled in.
What is the difference between optional and voluntary?
"Optional" describes something available to choose but not required, often a feature, item, or setting. "Voluntary" describes an action done by free will, without being forced. A course can be optional, while attending it is voluntary.
What is the difference between optional and elective?
Both mean not compulsory, but "elective" is used in specific contexts, such as elective courses at school or elective surgery that is chosen rather than urgent. "Optional" is the more general, everyday word for anything you may choose but do not have to take.
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